Development of an experimental apparatus for measurements of the coefficient of kinetic friction with linear movement

Abstract

A new experimental apparatus for friction, which enables easy and accurate calculation of the coefficient of kinetic friction by measuring the acceleration of a sample with a small error, has been developed. For this purpose, a friction track of optimum size and function, on which the guide rail was mounted so as to allow the sample to move linearly, was manufactured. Also, a glider that could move along this guide rail was manufactured. In addition, a photogate stand and a stanchion that work well without adjusting the photogate height or the angle for measuring the glider's acceleration were designed, and an easy way to attach and detach the sample to the bottom of the glider by using velcro tape was developed. Consequently, the coefficients of kinetic friction obtained from the new experimental apparatus were constant even for several experimental conditions: different angles or masses. © 2016, Canadian Medical Association. All rights reserved.